@InProceedings{MoraisNaccPint:2015:CoDyDe,
author = "Morais, Andr{\'e} Arruda Rodrigues de and Naccarato, Kleber
Pinheiro and Pinto Junior, Osmar",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "3D Cloud electrification model: convection and dynamics
description",
year = "2015",
organization = "IUGG General Assembly, 26.",
abstract = "Cloud electrification models are a powerful tool to study the
physical mechanisms that are responsible for the existence of
electric field inside thunderstorms. These models are very complex
and include a wide variety of cloud properties, atmospheric
motions and physical interactions. In this work, we present the
equations to simulate the dynamics and convection of a cloud in
3D. By solving the three equations of conservation of momentum,
the thermodynamic and the continuity equations we can simulate
various physical processes necessary to create a thunderstorm
cloud. The equations for conservation of momentum include the
contribution from the pressure, wind advection and friction and
the thermodynamic equation will consider turbulent effects as well
as latent heat absorbed or released from the hydrometeors phase
transitions. Coriolis effects will be neglected. The next stage of
the study will be the inclusion of the microphysical equations,
considering seven classes of hydrometeors, charge transfer
equations to be associated with the microphysical interactions and
a parametrization of the initiation of a lightning discharge. The
electrification model will be fully coupled with the dynamical and
microphysical equations. Sensitivity tests will be performed to
verify which electrification mechanism leads to the most realistic
results by comparing the output of the model with data acquired
from a real thunderstorm.",
conference-location = "Prague, Czech Republic",
conference-year = "22 June - 02 July",
urlaccessdate = "19 abr. 2024"
}